Ignoring cURL SSL validation (host name and self-signed certs)

Recently I had problems when I tried to access a Sparql Endpoint with a self-signed SSL certificate. I added a cURL parameter to ignore this validation (line 135):

```php
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
```

The other changes are related to a removed extra-spaces.